Framing for concrete and cement constructions.



W. HENDERSON.

FRAMING FOR GONORBTE AND CEMENT GONSTRUGTIONS.

APPLICATION FILED ABB.30,1908.

984,2 1 6. Patented Feb. 14, 191 1.

a SHBBT8-HREET 1. E l

In venzazt' ipe W. HENDERSON.

FRAMING FOR GDNGRETE AND CEMENT UONSTRUGTIONS.

APPLICATION TILED APRJSO. 190m. Patented Feb. 14, 1911.

2 BHBETHEBB'I 2.

a o 4 a w. x I U I! U H "w 3 m A z 5 m." m H 4. 6 i /J/ 8 The frame-Work which I employ with the supporting frame above described consists generally of a pair of symmetrical wings or sections shaped to conform to the curved inner surface of the tunnel or sewer and united by hinges.

27 denotes the opposite wings or sections of the frame-work. ach of these wings or sections comprises a bottom sill 28 and a top sill 28 connected by a suitable number of curved joists 29. The curvature of these joists will be the same as the curvature of the interior of the tunnel or sewer, and said joists carry the deck 30 which engages the interior of the tunnel wall and supports the cement while drying and hardening. The upper ends of the joists 29 are provided with hinges 31, by means of which the two wings or sections of the frame-work are hinged to a common hinge rod 32, which extends from end to end of the frame-work, as shown in Fig. 1. 33 denotes short rods extending between the end joists and the adjacent joists of each section or wing. These rods are adapted to be engaged by the yokes 22 on the upper ends of rod 21, and rod 32 is adapted to be engaged similarly by the yokes 24 on rods 23. The frame-Work is thus suj'iported on the vertically adjustable-rods 23 and the laterally adjustable rods 21.

In operation, the frame-work will be applied tothe. supporting frame 5, with the 'yokes of the rods 23 and 21 in engagement with rods 32 and 33 respectively. By operating the hand wheel nuts 20 and 25 in the appropriate direction. the frame-work can be collapsed sufiiciently to enable it to pass through any frame-work which may have been applied to the roof of the tunnel or sewer. When in proper position, the hand-wheel nuts 20 and 25 are adjusted in proper direction to elevate and expand the frame-,workcarried thereby and bring the same into engagement with the roof of the tunnel or sewer. After having been positioned in the manner described, braces 34 are applied to the sills 28, the lower ends of said braces being conveniently supported from one of the cross-ties 35. The handwheel nuts may then be unscrewed to disengage the yokes 22 and 24 from the framework. and the truck may then be sent from end to end'of the tunnel or sewer without any interference with the frame-work.

the exact central portion of the tunnel or sewer.

It will be apparent that, in order to remove the frame-work, it will be only necessary to move the truck tl'icreunder, apply the ends of the, rods 21 and 23 to the appropriate portions of the f1.'an'iework and remove the braces 3ft, whereupon the framework may be collapsed without injury and transported by the truck to a new point. of use; this adaptability of the frame-work to be removed without destruction materially lessens the number of such frame-works that will be required in the construction of a tunnel or sewer. If desirable, the framework, when applied to the roof, may be further reinforced bymeans of a strut 36 connecting the lower portions of the wings means for supporting the frame-work from the frame, said means comprising a vertically adjustable connection engaging the hinge rod. and laterally adjustable'connections engaging the sections of the framework. substantially as specified.

2. In an apparatus of the character set forth, the combination of a frame-work comprising a pair of curved sections, a hinge rod connecting said sections, a truck, a frame shiftably mounted on said truck, means for shifting said frame on said truck comprising a rack mounted on said truck, a' shaft mounted on said frame and having a pinion rigidly secured thereon adapt'ed-to engage with said rack and means for rotating said shaft, and means for supporting said frame-work from the frame. said meanscomprising a vertically adjustable connection engaging the hinge rod, and laterally adjustable connections engaging the sections of the framework. substantially as described.

3. In an apparatus of the character set forth, the combination of a frame-work, a franie,and means for supporting said framework from said frame. said means compris.

ing rods carried by said frame-work and adjustable rods carried by said frame and having yokes at their ends adapted to engage the rods of the frame-work, substantially as specified.

4. In an apparatus of the character set fort-h, the combination of a supporting frame, a frame-work comprising a pair of sleeve, substantially as described.

5. In an apparatus of the character set forth, the combination of a supporting frame, a frame-work, and means for sup porting the frame-Work from the frame, said means comprising one or more sleeves swiveled to said frame, a threaded rod Within each sleeve and having a portion adapted to engage the frame-work, and a nut on said rod bearing against said sleeve, substantially as specified.

6. In an apparatus of the character set forth, the combination of a supporting frame a framework comprising a pair of hinged sections, and means for adjustably supporting said frame-Work from said frame, said means comprising avertically adjustable threaded rod mounted on said frame and adapted to engage the framework, an adjusting nut for operating said rod, andmeans for spreading the sections of the frame-Work, substantially as specified.

In testimony whereof, I sign the foregoing specification, in the presence of two Witnesses. A a

' WALKER HENDERSON. Witnesses:

DANIEL E. DALY, B. V. BARAGHER. 

